<style lang="less">
@import '../../../styles/tree&table-common.less';
</style>
<template>
    <div class="search">
        <Card>
            <Row type="flex" justify="space-between">
                <Col v-if="expand" span="5">
                    <Alert show-icon>
                        当前选择：
                        <span class="select-title">{{ editTitle }}</span>
                        <a class="select-clear" v-if="editTitle" @click="cancelEdit">取消选择</a>
                    </Alert>
                    <Input v-model="searchKey" suffix="ios-search" @on-change="search" placeholder="输入节点名搜索" clearable />
                    <div style="position: relative">
                        <div class="tree-bar" :style="{ maxHeight: maxHeight }">
                            <Tree ref="tree" :data="treeData" :load-data="loadData" @on-select-change="selectTree"></Tree>
                        </div>
                        <Spin size="large" fix v-if="treeLoading"></Spin>
                    </div>
                </Col>
                <div class="expand">
                    <Icon :type="expandIcon" size="16" class="icon" @click="changeExpand" />
                </div>
                <Col :span="span">
                    <Row>
                        <Form ref="searchForm" :model="searchForm" inline :label-width="50">
                            <FormItem label="名称" prop="name">
                                <Input type="text" v-model="searchForm.name" placeholder="请输入" clearable style="width: 200px" />
                            </FormItem>
                            <FormItem label="状态" prop="status">
                                <Select v-model="searchForm.status" placeholder="请选择" clearable style="width: 200px">
                                    <Option value="0">正常</Option>
                                    <Option value="-1">禁用</Option>
                                </Select>
                            </FormItem>
                            <FormItem style="margin-left: -35px" class="br">
                                <Button @click="handleSearch" type="primary" icon="ios-search">搜索</Button>
                                <Button @click="handleReset">重置</Button>
                            </FormItem>
                        </Form>
                    </Row>
                    <Row class="operation">
                        <Button @click="add" type="primary" icon="md-add">添加</Button>
                        <Button @click="delAll" icon="md-trash">批量删除</Button>
                        <Button @click="getDataList" icon="md-refresh">刷新</Button>
                    </Row>
                    <Row>
                        <Alert show-icon>
                            已选择
                            <span class="select-count">{{ selectList.length }}</span>
                            项
                            <a class="select-clear" @click="clearSelectAll">清空</a>
                        </Alert>
                    </Row>
                    <Row>
                        <Table
                            :height="height1"
                            :loading="loading"
                            border
                            :columns="columns"
                            :data="data"
                            sortable="custom"
                            @on-sort-change="changeSort"
                            @on-selection-change="showSelect"
                            ref="table"
                        ></Table>
                    </Row>
                    <Row type="flex" justify="end" class="page">
                        <Page
                            :current="searchForm.pageNumber"
                            :total="total"
                            :page-size="searchForm.pageSize"
                            @on-change="changePage"
                            @on-page-size-change="changePageSize"
                            :page-size-opts="[10, 20, 50, 100, 200]"
                            size="small"
                            show-total
                            show-elevator
                            show-sizer
                        ></Page>
                    </Row>
                </Col>
            </Row>
        </Card>

        <Modal :title="modalTitle" v-model="modalVisible" :mask-closable="false" :width="500">
            <Form ref="form" :model="form" :label-width="70" :rules="formValidate">
                <FormItem label="名称" prop="name">
                    <Input v-model="form.name" />
                </FormItem>
            </Form>
            <div slot="footer">
                <Button type="text" @click="modalVisible = false">取消</Button>
                <Button type="primary" :loading="submitLoading" @click="handelSubmit">提交</Button>
            </div>
        </Modal>
    </div>
</template>

<script>
export default {
    name: 'treeAndTable',
    data() {
        return {
            treeLoading: false, // 树加载状态
            maxHeight: '500px',
            loading: false, // 表加载状态
            editTitle: '', // 编辑节点名称
            searchKey: '', // 搜索树
            expand: true,
            span: 18,
            expandIcon: 'ios-arrow-back',
            selectNode: {},
            treeData: [], // 树数据
            selectList: [], // 多选数据
            height1: 0,
            searchForm: {
                // 搜索框对应data对象
                name: '',
                status: '',
                pageNumber: 1, // 当前页数
                pageSize: 50, // 页面大小
                sort: 'createTime', // 默认排序字段
                order: 'desc' // 默认排序方式
            },
            modalType: 0, // 添加或编辑标识
            modalVisible: false, // 添加或编辑显示
            modalTitle: '', // 添加或编辑标题
            form: {
                // 添加或编辑表单对象初始化数据
                name: '',
                sex: 1,
                type: 0
            },
            formValidate: {
                // 表单验证规则
                name: [{ required: true, message: '不能为空', trigger: 'change' }]
            },
            columns: [
                // 表头
                {
                    type: 'selection',
                    width: 60,
                    align: 'center'
                },
                {
                    type: 'index',
                    title: '序号',
                    width: 60,
                    align: 'center'
                },
                {
                    title: '名称',
                    key: 'name',
                    minWidth: 200,
                    sortable: true
                },
                {
                    title: '描述',
                    key: 'description',
                    minWidth: 200,
                    sortable: true
                },
                {
                    title: '状态',
                    key: 'status',
                    align: 'center',
                    width: 150,
                    render: (h, params) => {
                        let re = '';
                        if (params.row.status == 0) {
                            return h('div', [
                                h('Badge', {
                                    props: {
                                        status: 'success',
                                        text: '启用'
                                    }
                                })
                            ]);
                        } else if (params.row.status == -1) {
                            return h('div', [
                                h('Badge', {
                                    props: {
                                        status: 'error',
                                        text: '禁用'
                                    }
                                })
                            ]);
                        }
                    }
                },
                {
                    title: '创建时间',
                    key: 'createTime',
                    width: 200,
                    sortable: true,
                    sortType: 'desc'
                },
                {
                    title: '操作',
                    key: 'action',
                    width: 150,
                    align: 'center',
                    fixed: 'right',
                    render: (h, params) => {
                        return h('div', [
                            h(
                                'a',
                                {
                                    on: {
                                        click: () => {
                                            this.edit(params.row);
                                        }
                                    }
                                },
                                '编辑'
                            ),
                            h('Divider', {
                                props: {
                                    type: 'vertical'
                                }
                            }),
                            h(
                                'a',
                                {
                                    on: {
                                        click: () => {
                                            this.remove(params.row);
                                        }
                                    }
                                },
                                '删除'
                            )
                        ]);
                    }
                }
            ],
            submitLoading: false, // 添加或编辑提交状态
            data: [], //表单数据
            total: 0 // 表单数据总数
        };
    },
    methods: {
        tableheig() {
            var bbb = document.getElementsByClassName('calc-px-height')[0].scrollHeight;
            var aaa = document.getElementsByClassName('calc-px-height')[0].children[0].children[0].children[1];
            var ccc = document.getElementsByClassName('calc-px-height')[0].children[0].children[0].children[0].scrollHeight;
            var ddd = bbb - ccc;
            console.log(bbb, '00000000000000');
            aaa.style.height = `${ddd}px`;

            if (this.searchForm.pageSize === 10) {
                this.height1 = 0;
            } else {
                this.height1 = document.getElementsByClassName('calc-px-height')[0].scrollHeight;
                if (this.total < this.searchForm.pageNumber * this.searchForm.pageSize) {
                    var r = (this.searchForm.pageNumber - 1) * this.searchForm.pageSize;
                    var a = this.total - r;
                    var s = a * 43 + 65;
                    if (s < this.height1) {
                        this.height1 = 0;
                    }
                }
            }
            if (this.total < 10) {
                this.height1 = 0;
            }
        },
        init() {
            // 初始化一级节点
            this.getParentList();
            // 获取表单数据
            this.getDataList();
        },
        getParentList() {
            // this.treeLoading = true;
            // this.getRequest("一级数据请求路径，如/tree/getByParentId/0").then(res => {
            //   this.treeLoading = false;
            //   if (res.success) {
            //     res.result.forEach(function(e) {
            //       if (e.isParent) {
            //         e.loading = false;
            //         e.children = [];
            //       }
            //     });
            //     this.treeData = res.result;
            //   }
            // });
            // 模拟请求成功
            this.treeData = [
                {
                    title: '一级1',
                    id: '1',
                    parentId: '0',
                    parentTitle: '一级节点',
                    status: 0,
                    loading: false,
                    children: [
                        {
                            title: '二级1',
                            id: '2',
                            parentId: '1',
                            status: 0,
                            parentTitle: '一级1'
                        }
                    ]
                },
                {
                    title: '一级2',
                    id: '3',
                    parentId: '0',
                    parentTitle: '一级节点',
                    status: 0
                }
            ];
        },
        loadData(item, callback) {
            // 异步加载树子节点数据
            // this.getRequest("请求路径，如/tree/getByParentId/" + item.id).then(res => {
            //   if (res.success) {
            //     res.result.forEach(function(e) {
            //       if (e.isParent) {
            //         e.loading = false;
            //         e.children = [];
            //       }
            //     });
            //     callback(res.result);
            //   }
            // });
        },
        search() {
            // 搜索树
            if (this.searchKey) {
                // 模拟请求
                // this.treeLoading = true;
                // this.getRequest("搜索请求路径", { title: this.searchKey }).then(res => {
                //   this.treeLoading = false;
                //   if (res.success) {
                //     this.treeData = res.result;
                //   }
                // });
                // 模拟请求成功
                this.treeData = [
                    {
                        title: '这里需要请求后端接口',
                        id: '1',
                        parentId: '0',
                        parentTitle: '一级节点',
                        status: 0
                    },
                    {
                        title: '所以这里是假数据',
                        id: '4',
                        parentId: '0',
                        parentTitle: '一级节点',
                        status: 0
                    },
                    {
                        title: '我是被禁用的节点',
                        id: '5',
                        parentId: '0',
                        parentTitle: '一级节点',
                        status: -1
                    }
                ];
            } else {
                // 为空重新加载
                this.getParentList();
            }
        },
        selectTree(v) {
            if (v.length > 0) {
                // 转换null为""
                for (let attr in v[0]) {
                    if (v[0][attr] == null) {
                        v[0][attr] = '';
                    }
                }
                let str = JSON.stringify(v[0]);
                let data = JSON.parse(str);
                this.selectNode = data;
                this.editTitle = data.title;
                // 重新加载表
                this.getDataList();
            } else {
                this.cancelEdit();
            }
        },
        cancelEdit() {
            let data = this.$refs.tree.getSelectedNodes()[0];
            if (data) {
                data.selected = false;
            }
            // 取消选择后获取全部数据
            this.selectNode = {};
            this.editTitle = '';
            this.getDataList();
        },
        changeSelect(v) {
            this.selectList = v;
        },
        changeExpand() {
            this.expand = !this.expand;
            if (this.expand) {
                this.expandIcon = 'ios-arrow-back';
                this.span = 18;
            } else {
                this.expandIcon = 'ios-arrow-forward';
                this.span = 23;
            }
        },
        changePage(v) {
            this.searchForm.pageNumber = v;
            this.getDataList();
            this.clearSelectAll();
        },
        changePageSize(v) {
            this.searchForm.pageSize = v;
            this.getDataList();
        },
        getDataList() {
            this.loading = true;
            // 根据用户选择树加载表数据
            this.searchForm.selectId = this.selectNode.id;
            // 带多条件搜索参数获取表单数据 请自行修改接口
            // this.getRequest("请求路径", this.searchForm).then(res => {
            //   this.loading = false;
            //   if (res.success) {
            //     this.data = res.result.content;
            //     this.total = res.result.totalElements;
            //     if (this.data.length == 0 && this.searchForm.pageNumber > 1) {
            //       this.searchForm.pageNumber -= 1;
            //       this.getDataList();
            //     }
            //   }
            // });
            // 模拟表格变化 模拟数据
            if (!this.selectNode.id) {
                // id为null获取全部数据
                this.data = [
                    {
                        id: '1',
                        name: 'XBoot',
                        description: '我是一级1的数据',
                        status: 0,
                        createTime: '2018-08-08 00:08:00'
                    },
                    {
                        id: '2',
                        name: 'Exrick',
                        description: '我是二级1的数据',
                        status: 0,
                        createTime: '2018-08-08 00:08:00'
                    },
                    {
                        id: '3',
                        name: 'XBoot',
                        description: '我是一级2的数据',
                        status: -1,
                        createTime: '2018-08-08 00:08:00'
                    }
                ];
            } else if (this.selectNode.id == '1') {
                this.data = [
                    {
                        id: '1',
                        name: 'XBoot',
                        description: '我是一级1的数据',
                        status: 0,
                        createTime: '2018-08-08 00:08:00'
                    }
                ];
            } else if (this.selectNode.id == '2') {
                this.data = [
                    {
                        id: '2',
                        name: 'Exrick',
                        description: '我是二级1的数据',
                        status: 0,
                        createTime: '2018-08-08 00:08:00'
                    }
                ];
            } else if (this.selectNode.id == '3') {
                this.data = [
                    {
                        id: '3',
                        name: 'Present By Exrick',
                        description: '我是一级2的数据',
                        status: -1,
                        createTime: '2018-08-08 00:08:00'
                    }
                ];
            }
            this.total = this.data.length;
            this.tableheig();
            this.loading = false;
        },
        handleSearch() {
            this.searchForm.pageNumber = 1;
            this.searchForm.pageSize = 50;
            this.getDataList();
        },
        handleReset() {
            this.$refs.searchForm.resetFields();
            this.searchForm.pageNumber = 1;
            this.searchForm.pageSize = 50;
            // 重新加载数据
            this.getDataList();
        },
        changeSort(e) {
            this.searchForm.sort = e.key;
            this.searchForm.order = e.order;
            if (e.order == 'normal') {
                this.searchForm.order = '';
            }
            this.getDataList();
        },
        showSelect(e) {
            this.selectList = e;
        },
        clearSelectAll() {
            this.$refs.table.selectAll(false);
        },
        add() {
            this.modalType = 0;
            this.modalTitle = '添加';
            this.$refs.form.resetFields();
            this.modalVisible = true;
        },
        edit(v) {
            this.modalType = 1;
            this.modalTitle = '编辑';
            this.$refs.form.resetFields();
            // 转换null为""
            for (let attr in v) {
                if (v[attr] == null) {
                    v[attr] = '';
                }
            }
            let str = JSON.stringify(v);
            let data = JSON.parse(str);
            this.form = data;
            this.modalVisible = true;
        },
        handelSubmit() {
            this.$refs.form.validate(valid => {
                if (valid) {
                    this.submitLoading = true;
                    if (this.modalType == 0) {
                        // 添加 避免编辑后传入id等数据 记得删除
                        delete this.form.id;
                        delete this.form.status;
                        // this.postRequest("请求路径", this.form).then(res => {
                        //   this.submitLoading = false;
                        //   if (res.success) {
                        //     this.$Message.success("操作成功");
                        //     this.getDataList();
                        //     this.modalVisible = false;
                        //   }
                        // });
                        // 模拟成功
                        this.submitLoading = false;
                        this.$Message.success('操作成功');
                        this.modalVisible = false;
                    } else if (this.modalType == 1) {
                        // 编辑
                        // this.postRequest("请求路径", this.form).then(res => {
                        //   this.submitLoading = false;
                        //   if (res.success) {
                        //     this.$Message.success("操作成功");
                        //     this.getDataList();
                        //     this.modalVisible = false;
                        //   }
                        // });
                        // 模拟成功
                        this.submitLoading = false;
                        this.$Message.success('操作成功');
                        this.modalVisible = false;
                    }
                }
            });
        },
        remove(v) {
            this.$Modal.confirm({
                title: '确认删除',
                // 记得确认修改此处
                content: '您确认要删除 ' + v.name + ' ?',
                loading: true,
                onOk: () => {
                    // 删除
                    // this.deleteRequest("请求地址，如/deleteByIds/" + v.id).then(res => {
                    //   this.$Modal.remove();
                    //   if (res.success) {
                    //     this.$Message.success("操作成功");
                    //     this.clearSelectAll();
                    //     this.getDataList();
                    //   }
                    // });
                    // 模拟请求成功
                    this.$Message.success('操作成功');
                    this.clearSelectAll();
                    this.$Modal.remove();
                    this.getDataList();
                }
            });
        },
        delAll() {
            if (this.selectList.length <= 0) {
                this.$Message.warning('您还未选择要删除的数据');
                return;
            }
            this.$Modal.confirm({
                title: '确认删除',
                content: '您确认要删除所选的 ' + this.selectList.length + ' 条数据?',
                loading: true,
                onOk: () => {
                    let ids = '';
                    this.selectList.forEach(function (e) {
                        ids += e.id + ',';
                    });
                    ids = ids.substring(0, ids.length - 1);
                    // 批量删除
                    // this.deleteRequest("请求地址，如/deleteByIds/" + ids).then(res => {
                    //   this.$Modal.remove();
                    //   if (res.success) {
                    //     this.$Message.success("操作成功");
                    //     this.clearSelectAll();
                    //     this.getDataList();
                    //   }
                    // });
                    // 模拟请求成功
                    this.$Message.success('操作成功');
                    this.$Modal.remove();
                    this.clearSelectAll();
                    this.getDataList();
                }
            });
        }
    },
    mounted() {
        // 计算高度
        let height = document.documentElement.clientHeight;
        this.maxHeight = Number(height - 287) + 'px';
        this.init();
    }
};
</script>
